<template>
  <div class="dashboard-container">
    <div class="app-container">
      <page-tools :show-before="true">
        <span slot="before">共{{ page.total }}条记录</span>
        <template #after>
          <el-button
            size="small"
            type="warning"
            @click="$router.push('/import')"
          >导入</el-button>
          <el-button
            size="small"
            type="danger"
            @click="exportData"
          >导出</el-button>
          <el-button
            size="small"
            type="primary"
            @click="showDialog = true"
          >新增员工</el-button>
        </template>
      </page-tools>
      <!-- 放置表格和分页 -->
      <el-card v-loading="loading">
        <el-table
          border
          :data="list"
          :stripe="true"
        >
          <el-table-column
            label="序号"
            sortable=""
            type="index"
          />
          <el-table-column
            label="姓名"
            sortable=""
            prop="username"
          />
          <el-table-column
            label="头像"
            align="center"
          >
            <template slot-scope="{row}">
              <img
                slot="reference"
                v-imagerror="require('@/assets/common/bigUserHeader.png')"
                :src="row.staffPhoto"
                style="border-radius: 50%; width: 100px; height: 100px; padding: 10px"
                alt=""
                @click="showQrCode(row.staffPhoto)"
              > </template>
          </el-table-column>
          <el-table-column
            label="工号"
            sortable=""
            prop="workNumber"
          />
          <el-table-column
            label="聘用形式"
            sortable=""
            prop="formOfEmployment"
            :formatter="formatEmployment"
          />
          <el-table-column
            label="部门"
            sortable=""
            prop="departmentName"
          />
          <el-table-column
            label="入职时间"
            sortable=""
            prop="timeOfEntry"
          >
            <template v-slot="{ row }">
              {{ row.timeOfEntry | formatDate }}
            </template>
          </el-table-column>
          <el-table-column
            label="账户状态"
            sortable=""
            prop="enableState"
          >
            <template slot-scope="{ row }">
              <el-switch :value="row.enableState === 1" />
            </template>
          </el-table-column>
          <el-table-column
            label="操作"
            sortable=""
            fixed="right"
            width="280"
          >
            <template slot-scope="{ row }">
              <el-button
                type="text"
                size="small"
                :disabled="!checkPermission('POINT-USER-UPDATE')"
                @click="$router.push(`/employees/detail/${row.id}`)"
              >查看</el-button>
              <el-button
                type="text"
                size="small"
              >转正</el-button>
              <el-button
                type="text"
                size="small"
              >调岗</el-button>
              <el-button
                type="text"
                size="small"
              >离职</el-button>
              <el-button
                type="text"
                size="small"
                @click="editRole(row.id)"
              >角色</el-button>
              <el-button
                type="text"
                size="small"
                @click="delEmployee(row.id)"
              >删除</el-button>
            </template>
          </el-table-column>
        </el-table>
        <!-- 分页组件 -->
        <el-row
          type="flex"
          justify="center"
          align="middle"
          style="height: 60px"
        >
          <el-pagination
            layout="prev, pager, next"
            :page-size="page.size"
            :current-page="page.page"
            :total="page.total"
            @current-change="changePage"
          />
        </el-row>

      </el-card>
    </div>
    <!-- 弹出层 -->
    <add-employee :show-dialog.sync="showDialog" />
    <el-dialog
      title="二维码"
      :visible.sync="showCodeDialog"
    >
      <el-row
        type="flex"
        justify="center"
      >
        <canvas ref="myCanvas" />
      </el-row>
    </el-dialog>

    <assign-role
      ref="assignRole"
      :show-role-dialog.sync="showRoleDialog"
      :user-id="userId"
    />
  </div>
</template>

<script>
import { getEmployeeList, delEmployee } from '@/api/employees'
import EmployeeEnum from '@/api/constant/employees'
import AddEmployee from './components/add-employee'
import AssignRole from './components/assign-role.vue'
import { formatDate } from '@/filters'
import QrCode from 'qrcode'
export default {
  components: {
    AddEmployee,
    AssignRole
  },
  data() {
    return {
      page: {
        page: 1 /* 当前页码 */,
        size: 10 /* 一页的总条数 */,
        total: 0 /* 总数据条数 */
      },
      list: [], // 存储员工详情列表
      loading: false,
      showDialog: false,
      showCodeDialog: false,
      showRoleDialog: false /* 角色功能弹窗 */,
      userId: '' /* 获取用户基本信息的id */
    }
  },
  created() {
    this.getEmployeeList()
  },
  methods: {
    // 获取员工详情列表
    async getEmployeeList() {
      this.loading = true // 开启加载
      const { total, rows } = await getEmployeeList(this.page)
      this.page.total = total
      this.list = rows
      this.loading = false // 关闭加载
    },
    // 分页页码切换函数
    changePage(newPage) {
      this.page.page = newPage
      this.getEmployeeList()
    },
    // 格式化数据
    formatEmployment(row, column, cellValue, index) {
      const obj = EmployeeEnum.hireType.find((item) => item.id === cellValue)
      return obj ? obj.value : '未知数据'
    },

    // 根据id删除员工
    async delEmployee(id) {
      try {
        await this.$confirm('确定删除该员工?')
        await delEmployee(id)
        this.getEmployeeList()
        this.$message.success('删除成功! ')
      } catch (error) {
        console.log(error)
      }
    },

    exportData() {
      /* 表头数据 */
      const headers = {
        姓名: 'username',
        手机号: 'mobile',
        入职日期: 'timeOfEntry',
        聘用形式: 'formOfEmployment',
        转正日期: 'correctionTime',
        工号: 'workNumber',
        部门: 'departmentName'
      }
      const multiHeader = [['姓名', '主要信息', '', '', '', '', '部门']]
      const merges = ['A1:A2', 'B1:F1', 'G1:G2']
      import('@/vendor/Export2Excel').then(async(excel) => {
        /* 获取所有的数据在一页中显示,所以条数据 */
        const { rows } = await getEmployeeList({
          page: 1,
          size: this.page.total
        })
        /* 格式化数据 */
        const data = this.formatJson(headers, rows)

        excel.export_json_to_excel({
          header: Object.keys(headers),
          data,
          filename: '员工信息表',
          autoWidth: true,
          bookType: 'xlsx',
          multiHeader,
          merges
        })
      })
    },
    /* 格式化导出数据 */
    formatJson(headers, rows) {
      return rows.map((item) => {
        /* item是rows数组里的每个元素,它其实是一个对象 */
        return Object.keys(headers).map((key) => {
          /* headers是上面咱们设置的映射数据,我们通过keys来获取key,然后遍历key
          此时obj就是每个中文名,然后我们在item对象里,使用key来获取映射的英文名
          再通过英文名获取对象里的值,返回一个数组,每个map方法都会返回一个新数组,每次循环返回的值是新数组的元素
          而不是新数组的本身. */
          if (
            headers[key] === 'timeOfEntry' ||
            headers[key] === 'correctionTime'
          ) {
            return formatDate(item[headers[key]])
          } else if (headers[key] === 'formOfEmployment') {
            const obj = EmployeeEnum.hireType.find(
              (obj) => obj.id === item[headers[key]]
            )
            return obj ? obj.value : '未知'
          }

          return item[headers[key]]
        })
      })
    },
    /* 将图片转换成二维码 */
    showQrCode(url) {
      // url存在的情况下 才弹出层
      if (url) {
        this.showCodeDialog = true // 数据更新了 但是我的弹层会立刻出现吗 ？页面的渲染是异步的！！！！
        // 有一个方法可以在上一次数据更新完毕，页面渲染完毕之后
        this.$nextTick(() => {
          // 此时可以确认已经有ref对象了
          QrCode.toCanvas(this.$refs.myCanvas, url) // 将地址转化成二维码
          // 如果转化的二维码后面信息 是一个地址的话 就会跳转到该地址 如果不是地址就会显示内容
        })
      } else {
        this.$message.warning('该用户还未上传头像')
      }
    },

    /* 点击角色触发的函数 */
    async editRole(id) {
      this.showRoleDialog = true
      this.userId = id
      /* 为什么不能在子组件里传参呢?
      因为props属性接收参数是异步的,所以当我们调用函数的时候,userId还无法获取到,所以无法在子组件里传参. */
      await this.$refs.assignRole.getUserDetailById(id) // 父组件调用子组件方法,或许该用户的角色信息,用于回显数据
    }
  }
}
</script>

<style>
</style>
